Spring Pin 1511610310 1-51161031-0 For ISUZU CXZ51K CYH51K CXZ81K 6WF1 10PE1

The Spring Pin (OEM Numbers: 1511610310 / 1-51161031-0 / Replacement: 1511610431 / 1-51161043-1) is a premium-quality, direct replacement suspension component designed specifically for ISUZU CXZ51K, CYH51K, and CXZ81K series heavy-duty trucks equipped with 6WF1 and 10PE1 diesel engines.

This spring pin - also listed in some catalogs as a trunnion shaft oil seal - is a critical chassis component that connects the leaf spring eye or suspension trunnion to the frame bracket or shackle. It allows controlled suspension articulation while securely transmitting vehicle load, braking forces, and road shock from the spring to the frame.

• OE Quality: Manufactured to strict ISUZU dimensional and material specifications for perfect fit and function.
• High-Strength Alloy Steel: High-frequency quenching and tempering provide exceptional wear resistance and fatigue strength.
• Precision-Machined: Exact diameter and length ensure proper fit with spring eye, trunnion, or shackle.
• Corrosion-Resistant Finish: Rust-preventive coating protects against moisture, road salt, and environmental exposure.
• Restores Suspension Integrity: Eliminates excessive component movement, misalignment, and suspension noise caused by a worn pin.
• Direct Replacement: Matches OE pin dimensions, thread size, and head configuration.
• Long Service Life: Engineered for heavy-duty commercial truck duty cycles.
• Essential Chassis Component: Critical for maintaining proper axle alignment and vehicle stability.
• Cost-Effective Repair: Affordable replacement that prevents costly damage to springs, trunnions, and frame brackets.
• Broad Compatibility: Suitable for multiple ISUZU heavy-duty models using similar suspension designs.

This spring pin is specifically designed for ISUZU heavy-duty trucks and commercial vehicles:

• ISUZU CXZ51K (Heavy-Duty Trucks)
• ISUZU CYH51K (Heavy-Duty Trucks)
• ISUZU CXZ81K (Heavy-Duty Trucks)
• ISUZU CV, CX series (as applicable)

• ISUZU 6WF1 - V10, Diesel
• ISUZU 10PE1 - V10, Diesel
• Application: Heavy-duty trucks, construction, and industrial use

Professional mechanic or suspension specialist installation is strongly recommended:

1. Ensure vehicle is safely supported - Use appropriate jack stands or a lift to support the vehicle frame and axle.
2. Support the axle - Place a jack under the axle to support its weight during pin removal.
3. Remove the retaining nut - Remove the nut and washer securing the spring pin.
4. Extract the old pin - Use a proper drift punch or press to drive out the old pin; avoid damaging the spring eye, trunnion, or bracket.
5. Inspect related components - Check the leaf spring eye, trunnion, shackle, and frame bracket for wear, elongation, or damage; replace if necessary.
6. Clean mounting surfaces - Remove dirt, rust, and debris from the bores.
7. Apply lubricant - Apply a small amount of anti-seize compound or grease to the new pin.
8. Install the new pin - Insert the new spring pin through the spring eye, trunnion, or bracket; ensure proper alignment.
9. Install the retaining nut - Install the nut and washer; torque to manufacturer specifications.
10. Check clearance - Ensure the spring and pin do not contact other components throughout suspension travel.
11. Lower the vehicle - Carefully lower the vehicle and remove jack stands.
12. Check alignment - A wheel alignment check is recommended after installation.
13. Road test - Test drive to verify proper handling, no abnormal noise, and no vibration.

• Material Verification: Confirms alloy steel composition and hardness meet ISUZU strength and wear resistance specifications.
• Dimensional Inspection: Pin diameter, length, and thread size verified within OEM tolerances.
• Hardness Testing: Surface hardness tested to ensure proper wear resistance and fatigue strength.
• Surface Finish Inspection: Anti-corrosion coating checked for proper coverage and adhesion.
• Thread Inspection: Thread pitch and form verified for proper nut fit.
• Visual Inspection: 100% checked for cracks, bends, or manufacturing defects.
• Packaged Safely: Protected and packaged to prevent damage during transit.

• Neutral export packing or customized packaging available
• Carton or wooden case for safe transportation
• Fast delivery for stock items
• Shipping by Express Air or Sea